Recently after the machine has finished booting and all start-up programmes have been loaded I get this error message
"The security information is invalid or has been modified. This program will be terminated"
There is no indication of which programme is being referred to.
All start-up programmes are correctly loaded and everything seems to be working as it should. I click "OK" and the message goes away.
There doesn't seem to be anything relevant in the event log.
I cannot be certain but it might be that this started happening after one of the many recent Windows security updates
Windows 2000 SP4.